Amazing idea, to have async multiplayer game and for sure it couldn't be too easy to make!
As a hider it felt good, loads of options of fun traps and the like.
As a seeker I feel there could be some more mechanics, just walking and searching felt a bit tiring after 3 of 6 minutes. Maybe making the area smaller and adding a small interesting places to hide eggs like tall grass you can walk through or bushes. And maybe some kind of egg compass to make it just a bit easier for the seeker.
Visuals felt fine, made sense. Music was pretty good very soothing.
Overall very cool idea!